Overview

A DC 16-Circuit Source/Sink I/O Block is an intelligent and configurable module designed to interface with a variety of discrete DC sensors and actuators.

There are two types of DC 16-circuit source blocks that provide power to field output devices:

• 24 VDC Source Block (IC66*BBD022): Suitable for use with both 2-wire and 3-wire solid-state and electromechanical sensors.
• 24/48 VDC Source Block (IC66*BBD020): Designed for use with 3-wire solid-state sensors and electromechanical sensors.

Specifications

Block Specifications:

• Size (Height x Width x Depth): 8.83” (22.44 cm) x 3.56” (9.05 cm) x 4.42” (11.23 cm)

• Weight: 4 lbs. (1.8 kg)

• LEDs (I/O Block):

  • Unit OK
  • I/O Enabled

• LEDs (Each Circuit): Individual load side indicators

• Block to Block Isolation: 1500V

• Heat Dissipation: 68.8 Watts with 16 outputs on at 2A

• Operating Voltage (One Source):

  • 18-56 VDC (24/48 V)
  • 18-30 VDC (24 V)

• Ripple (Maximum): 10%

• Required DC Power:

  • 150 mA typical
  • 300 mA maximum

• Power Supply Dropout Time: 10 ms

Input Specifications:

• Voltage Relative to DC Source Blocks:

  • Input ON:
    • 24 VDC supply: 16-24 VDC
    • 48 VDC supply*: 32-48 VDC
  • Input OFF:
    • 24 VDC supply: 0-7 VDC
    • 48 VDC supply*: 0-14 VDC

• Input Processing Time (Typical): 5.6K Ohms (24/48V), 1.8K Ohms (24V)

• Input Impedance (Typical):
  1.7 ms (plus selectable filter delay)

• Selectable Input Filter Times:
  5-100 ms

• Input Diagnostics:

  • Open wire
  • Overtemperature
  • Failed Switch

Output Specifications:

• Output Current (Steady State): 2 Amps per circuit

• Maximum Inrush Current: 10 Amps up to 10 ms

• Block Output Current: 15 Amps at 35°C

• Output OFF Leakage Current: 1.0 mA

• Maximum Switching Frequency: Once per second (high inrush current)

• Output Turn-On Delay (Maximum): 1 ms

• Output Voltage Drop: 2.0 volts maximum at 2 Amps inrush

• Minimum Recommended Load: 50 mA with No Load Enabled

• Output Diagnostics:

  • Short Circuit
  • Overload
  • No Load
  • Failed Switch
  • Overtemperature

Environmental Specifications:

• Operating Temperature: -0° to +60°C (32° to +140°F)

• Storage Temperature: -40°C to +212°F

• Humidity: 5% to 95% (non-condensing)

• Vibration:

  • 5-10 Hz: 0.2” (5.08mm) displacement
  • 10-200 Hz: 1G